Ask Question
20 May, 02:16

Find x (Will mark brainliest if you are right)

(-3x + 2) * (45x + 21) + (-4x + 25) = 50

Show Work!

+5
Answers (1)
  1. 20 May, 02:43
    0
    Step-by-step explanation:

    (-3x + 2) (45x + 21) + (-4x + 25) = 50

    -135x^2 - 63x + 90x + 42 - 4x + 25 = 50

    -135x^2 + 23x + 67 = 50

    -135x^2 + 23x + 67 - 50 = 0

    -135x^2 + 23x + 17 = 0

    quadratic formula : x = (-b ± √b^2 - 4ac) / 2a

    a = - 135, b = 23, c = 17

    x = - 23 ± √23^2 - 4 (-135) (17) / (2 (-135)

    x = (-23 ±√9709) / - 270

    x = 23/270 ± 1 / 270√9709/270

    x = 0.4501 or x = - 0.2798 <== = these answers are rounded
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Find x (Will mark brainliest if you are right) (-3x + 2) * (45x + 21) + (-4x + 25) = 50 Show Work! ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers